Sprayer



W. M. SMITH June 14, 1927.

SPBAYER Filed Dec. 21, 19125 Patented June 14, 1927.

UNITED STATES WILLIAM H. SMITH, OF BEMIDJI, MINNESOTA.

SPRAYER.

Application filed December 21, 1925. Serial No. 76,750.

The invention aims to utilize a vacuum cleaner, particularly of theelectrically driven type, as means for coating surfaces by sprayingthereon the material, such as paint, enamel, varnish and the like inliquid form.

The invention provides an attachment which may be coupled to anyelectric vacuum cleaner to admit of the blast of air created therebybeing utilized to atomize the liquid material and apply the same to thesurface to be coated in substantially the same manner as the ordinaryair brush.-

W'hile the drawings illustrate a preferred embodiment of the inventionit is to be understood that in adapting the means to meet specific needsand requirements the design may be varied, and such other changes in theminor details of construction may be 0 resorted to within the scope ofthe invention as claimed, without departing from the spirit thereof.

For a full understanding of the invention and the merits thereof,reference is to be had 5 lo the following description and the drawingshereto attached, in which,-

Figure 1 is a detail view showing the application of the invention,

Figure 2 is an enlarged sectional view of I a receptacle containing thepaint, enamel or other liquid material to be atomized and ap-,

plied to the surface to be coated, in the form of a spray and showingthe operating parts associated therewith, and

Figure .3 is a fragmentary front elevational View of the partsillustrated in F igure 2.

Corresponding and like parts are referred to in the followingdescription and designated in the several views of the drawings by likereference characters.

The numeral 1 designates a vacuum cleaner of the type adapted to beelectrically operated, and 2 represents the exhaust to which the usualdust bag 3 is coupled.

In accordance with the invention a flexible tube 3 is coupled to theexhaust 2 of the fan casing of the cleaner and the attachment isconnected to the delivery end of the tube 3 whereby the blast of air maybe utilized for atomizing the material and applying the same to thesurface tobe coated in the form of a spray in substantially the samemanner as the ordinary air brush.

In accordance with the invention, a re ner to be readily atomized by theblast of,

air.

Anozzle 7 is connected to the cover 5 and its delivery end is taperedand terminates in an elongated outlet which delivers a blast of airacross the delivery end of the tube 6, whereby to effect delivery of theliquid material from the receptacle 4 and atomize and apply the materialto the surface to be coated in the form of a spray. Any suitableconnection 8, such as a bracket, may be utilized for connecting thenozzle 7 to the cover 5. In the preferred form the bracket includes anopen-ended-nozzle receiving socket 8 which tapers toward the projectingupper end of the tube 6 and is adapted to snugly receive the taperedportion of the nozzle. The nozzle can only be thrust into the socket asfar as shown in Figure 2, and, therefore, when in place, it will alwayshave its free end disposed in proper relation to the upper. end of thetube 6 and no adjustment will be necessary. The outer or receiving endof the nozzle 7 may be coupled to the flexible tube '3 in anydeterminate manner, as indicated at 9 in Figure 2 andthe tube 3 may beof any length to admit of a freedom of movement of the receptacle 4:according to the nature of the Work so that the material may beconveniently applied to the surface to be coated.

In practice, the attachment, comprisin the recetpacl-e 4 and associated,parts, suc as the tube 6 and nozzle 7, may be connected to one end of aflexible tube 3, the other end of said tube being coupled to the exhaust2 of the vacuum cleaner, after the dust bag 3 has been disconnected, andwhen the vacuum cleaner is in operation a blast of air is caused to passthrough the tube 3 and discharging at the outlet of the nozzle 7 causesa delivery of the material from the receptacle 4, said material as itemerges from the tube 6 being atomized and applied to the surface to becoated in the form of a spray. By having the socket 8 of the bracketformed as shown, the nozzle may be firmly wedged into it, when thedevice is in use, but may be easily removed so that the receptacle andnozzle may be stored in a container without the nozzle remaining inengagement with the cover of the receptacle. The nozzle and receptaclewill, therefore, take up less room and if placed on a shelf there willbe less danger of the weight of I the nozzle causing the receptacle totip over and permit the paint to leak out through the tube 6. It shouldbe further noted that when painting, the receptacle may be very easilydetached from the nozzle and the air blast employed to remove dust froma corner of a floor or wall and the nozzle then again thrust into thesocket of the bracket without it being necessary to adjust the nozzletoward or away from the upper end of the outlet tube.

Having thusdescribed the invention, I claim:

In a device of the character described, a receptacle open at its top, aremovable cover for the open upper end of said receptacle, an outlettube carried by said cover with its upper portion projecting through thecover and its lower end adjacent the bottom of the receptacle whenthe-cover is in place, a bracket carried by said cover and including alongitudinally tapered socket open at its ends and having its smallerend disposed towards the upper end of said tube, and a nozzle having oneend adapted to be connected with a conduit for fluid under pressure, thenozzle being tapered towards its other end and wedged into said taperedsocket with its free end projecting from the smaller end of the socketand terminating adjacent the upper end of said tube for directing ablast of fluid across the same.

In testimony whereof I aflix my signature.

WILLIAM M. SMITH. [1 5.]

